—You have to believe in yourself.No one else will，if you don't.
— .Confidence is really important.
(2012·天津)
A. It's not my cup of tea
B. That's not the point
C. I don't think so
D. I couldn't agree more
网友回答
A. It's not my cup of tea
B. That's not the point
C. I don't think so
(答案→)D. I couldn't agree more
解析：句意：——你得相信自己。如果你不相信自己，没有人会相信你。——我非常赞成，信心真的很重要。依据答语第二句可知答话人非常同意对方的观点。I can't/couldn't agree more意为“我太同意你(的观点)了”。